Nail-controlling mechanism for nailing-machines.



' Patented Nov. 4, [902. F. 0. TOBEY.

NAIL CONTROLLING MECHANISM FOR NAILING MACHINES.

(Application filed Nov. 23, 189B.) (No Model.)-

UNITED. STATES BA EN- FRANKLIN o; TOBEY, OF SOMERVILLE, "MAssAGHUSETTS,* ASSIGNORBY.

MESNE ASSIGNMENTS,jTO THEUNI'IED'SHOE MACHINERYCO'MPANY; A CORPORATIONpr nnwmasnr.

NAIL-CONTROLLING M ECIHANISM F'OR NAlLlNG-"MAQHINES'.

SPEOIFICATION'forming-partof LettersPaJtent No. 712,866idated1Novenober4, 1902. Application filed November 23. 1898; Serial-lilo, 697,23}. .(Nomodel.)

chines, oi which the following-description, in

connection with the accompanying drawings,

is a specification,-like characters o'n'the draw ings representing likeparts In that class of 'BaiIing machines employ ing loos'e nailshav-ingheads, said nails being fed into and conducted down aslotl-ofaroadway to the point where the nails are to be driven by any'usuaidriver, difficulty is ex,-

perienced inkeepingtheroadway full of nails." The underv sides of theheads of the nails rest on the top of the roadway, and the nails.

properly lodgedwith' their bodies in the slot of'the roadway in theirdescent down theroadway' pass under a cap-plate locatedclose.

. to the top of the roadway, said'ieapv-pl'atecooperatingwith the topsofthe heads of the}:

- patent, my improved mechanism being canaq and. with nails, so thatthey remain in the roadway;

The roadway fails I t'0 be properly filled beef cause of thefact-that'at times nail'sbecome E improperly lodgedon the top of theroadway, so that they cannot-passunderthe cap-plate, and henceallthe-nailsback of theim'properl'yproperly'the roadway.-

moved in the'direct'ion of thetop of the roadway to detach or kickofiany overriding nails. The invention herein to be described is an-inprovementup'on the mechanism shown in'sai-d.

ble of being actuated more rapidly. less power and friction.

' Figure 1.in elevation showsa suflicient por-. tion of anailing-machine of well-known'oom 'struction with my improvements addedto enable my invention to'be understood. Fig. 2 shows the gage,formingthe upper end of the capintwo views. Fig. 3 shows the slidingpin to be described, and Eigx shows the striker detached. 7

The stationary plate 13,

forming partof'the nail-receptacle, said plate havinga"hopperlodgednails'are arrested and cannot enter.

a sheet-metal spring.

14 through which the nails are poured into the pot,- the roadway 16, itscap 24,.ihe apron 71 on which 'thenails. lifted by the usual '--shelves"of the pot drop preparatory to enteringt e slot of the roadway, andthe shaft 9, on'

[which said roadway rests,are and may be as in g 5- li'ca-ted by likeletters in United States Patent No .490,624, dated Jan i1ary'24,1.893,and therefore need not he herein more fully described.- The-cap-plate'ii, as herein shown, is provided witha shaft 2, towhiQl issecured a do wheel 3, having a series" ofcam-shaped teeth.

This, shaft in practice may have attached to "it albeit-pulley, sothatsaidshaft maybe ro-' .tared by'a belt driven from anysuitable mov-,i-ngjpartfof the nailing-machine, .Patent No. 490,624,;

as in said .65

i'lhe plat'e'l3 base-shoulder 4, to which, as herein shown,maybe'attachedby 'a set-screw 5 ablock 7-, the lower end of whichconstitutes a gagefand said screw may also'hold in place at One. sideofs aid gage a-strik'er'fii', shown as" 'lhe'lowerend of the theupper edgeof; the

gage terminatesnearroadway and hasa groove, 18 of asize and shape to'permit the passage under it of the 7; head of the nailbeingused',and'said gage, as

herein shewnfis provided with aguideway or hole 12 to receive adeviceshown as asliding gem-'8, which is moved to actuate thejs'triker, saidpin, as shown, having atone 'end ahead. 189 I (See Fig. 3.) Thesheet-metal plateoiwhich I the striker is composed may be bent, as-shownin Fig. 1,;to constitute a spring,'.the normal tendency of which is tomove'toward'the shoulderyi, the free end of the strikerlhaving, as .85herein represented, two Wings 5 which over' lapthe side walls 7 of thegage, s'aid sidewalls extending below the top of the raceway and:preventing the passage beyond them of any I nails having heads ofgreater diameter than 10 it is intended shall slidedown the raceway fromthe gage then in use.- The small endof 1 the pin projects through theygnideway or hole 1 ;2-andthe'striker acting on the head of said pinkeeps its small end in the line of travel'oli g5 the wheel 3,50 thattheteeth of saidwheel as the latter is rotated act on the said pin andcause it to vibrate the spring striker rapidly.

The drawing shows the small end of the pin in contact with the back ofatooth of the wheel, the pin having been moved for substantially its fullextent. to the left and as having taken the striker with it, and alittle farther movementof the wheel will let the pin drop onto the backof the next tooth. The upper end of the roadway is shown as having a fewnails hanging .properly in its slot, and in front of them is a nailcross-lodged or improperly mounted on the roadway, so that its headcannot pass under the gage and slide down the roadway, and consequentlysuch nail has to be'discharged before the nails which have entered theslot properly and behind it can travel with their heads through thegroove at the under side of the gage and thence down the roadway underthe cap-plate 24. The striker in its, movement by the cam and pin actsagainst the improperly-lodged nail and kicks it ofif the top of theroadway.

The operator may readily change the gage and substitute for it onehaving a groove 18 of the proper size and shape to permit the passage ofthe head of the nail to bev used. I have found myinvention well adaptedto use with so-called Hungarian nails.

The pin 8 constitutes what may be designated as intermediate meansbetween the cam and the striker to actuate the striker as the cam isrotated.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-- 1. In a-nailing machine, aroadway,astriker inthe form of a spring, means to hold one end of said striker in a fixedposition with relation to the roadway, and means to actuate the strikerto remove nails improperly lodged in the roadway.

2. In a nailing-machine, a roadway, a gage located at or near the top ofthe roadway and shaped to permit the passage between it and the top ofthe roadway of only the head of a nail,combined with astriker made as aspring, a sliding pin to act on the striker, and a cam to move said pin,substantially as described.

3. In a nailing-machine, a roadway, agage located at or near the top ofthe roadway and shaped at its under side to permit the passage beyond itof the head of a nail hanging properly in the'roadway; combined with astriker made as a spring, a headed pin, to act on said striker, a cam toact upon and move said pin and striker, substantially as described.

4. In a nailing-machine, aroadway, a gage notched at its end next saidroadway for the passage of the heads of nails thereunder on their waydown said roadway, a striker in the form of a spring, one end of saidspring being fixed to the framework of the machine, and

means to actuate the striker, substantially as described. v

5. In a nailing-machine, a roadway, a stationary gage notched at itslower'end to embrace the roadway, said gage having a groove for thepassage of the heads of nails entering said roadway, a striker fixed atone end with relation to the framework of the machine, a rotating camocoupyinga position abovesaid roadway, and intermediate means betweensaid carnand said and cause the striker to throw oflf nails improperlylodged upon the roadway, substantially as described.

6. In a nailing-machine, a roadway, a gage terminating at or beyond itin the raceway of the head of a nail hanging properly in the roadway,combined with a striker made as a spring held fixedly at one end withrelation to the framework of the machine, and means to actuate saidstriker intermittingly, said striker returning into its normal positiondue to the yielding nature of the striker, substantially as described.

' 7. In a nailing-machine, a roadway to support the heads of a series ofnails,'an adjustable gage grooved at its underside to permit the passageunder it and between it and the upper side of the roadway of only suchnails as have'heads small the said groove, said gage having wings whichextend below the top of the raceway.

8. In a nailing-machine, a roadway, occupying a fixed position above thetop of said roadway, the under side of the gage being grooved to permitthe passage between it and the top of the roadway of only the head of anail, said gage having wings depending below the top of the roadwaysupporting the heads of the nails.

9. In a nailing-machine, a roadway, agage occupying a fixed positionabove the slotted top of said roadway, the under side of the gage beinggrooved tov permit the passage between it and the top of the roadway ofonly the head of a nail, said gagehaving wings dea gage pending belowthe top of the roadway supporting the heads of the nails, as'triker,means to hold one end of said striker in fixed position with relation tothe roadway, andmeans to actuate said striker to remove nails improperlylodged in the roadway in front of the gage.

enough to pass through striker to actuate the same near the top of theroadway and shaped to permit the passage-under and slotted In testimonywhereof I have signed my name to this specification in two subscribingwitnesses.

FRANKLIN O. TOBEY.

the presence of Witnesses:

GEO. W. GREGORY, EDITH M. STODDARD.

